The mountin bolt is made from stainless steel and uses a torx head

It has large collars to fit pretty much any bike around without marking your frame

Extremely lightweight and durable

Sealing is achieved through an adjustable taper ring cover and integrated rubber seal

Yakima Tubetop PDP|Colour The mountin bolt is madeThere are a large number of bike frames out there that have no chance of being mounted to a mast style bike carrier due to an incompatible top tube design. Very commonly an issue with duallys. The Yakima Tubetop solves that problem with a heavy duty solution to a common issue. Easy to install but secure enough to trust it on those long drives the Toptube can carry bikes up to 20kg, 5kg more than most brands on the market. It has large collars to fit